Description
What it is
The ISD1820 module with blue PCB is a voice recording and playback device that includes an integrated microphone. This module allows you to create projects that require the detection and storage of voice messages.
Features
- Voice sound playback ISD1820
- Integrated microphone
- Blue PCB
- Ideal for rapid prototyping projects
What it is for
Create a voice alert system that sends recorded voice messages when certain conditions are met, such as a door opening or noise level exceeding a certain threshold. Compatible with Arduino and ESP.
Tutorial: How to use ISD1820 Voice Recording Module
The ISD1820 voice recording module with integrated microphone allows you to record and playback voice messages up to 60 seconds. Ideal for rapid prototyping projects, it is perfect for both beginners and more experienced makers.
What you need
- Arduino Uno or compatible
- USB A-MicroB cable
- PC with Arduino IDE installed
Steps
- 1. Connect the ISD1820 module to your Arduino using the available GPIO connectors.
- 2. Load the example sketch provided in the Arduino IDE.
- 3. Press the RECORD button to start recording sound.
- 4. When you are done, press the RECORD button again to stop the recording.
- 5. Press PLAY to play back the recorded message.
- 6. Check the specifications on the datasheet to configure the wait times between recordings if necessary.
- 7. Try modifying the sketch to add features such as multi-message storage or remote control via Arduino.
- 8. Test your project with various scenarios to ensure everything works correctly.
Example code
void setup() {
Serial.begin(9600);
}
void loop() {
// Aggiungi qui la logica di registrazione e riproduzione del suono
}
Mini project
Create a voice alert system that sends recorded voice messages when certain conditions are met, such as a door opening or noise levels exceeding a certain threshold.
Common mistakes
- Do not verify proper module power supply.
- Configure wait times between recordings without consulting the datasheet.
- Omit testing the project with various scenarios to ensure its effectiveness.
Recommended accessories
- External Microphone
- Portable Battery
- Relay Module 5V
- Indicator LED
Frequently asked questions
How can I increase the recording duration?
Check the datasheet for maximum duration limits and consider using multiple modules if necessary.
What is the frequency range of the integrated microphone?
Check the specifications on the datasheet to obtain accurate information about the audio detection range.










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